Environmental change
Subtitle: focus on Ontario.  Edited by D.E. Elrick.
Contributors: Elrick, David Emerson, 1931-,; Science Research Associates (Canada); University of Guelph.
Publisher: University of Guelph
Published: 1970
Place of publication: [Guelph, Ont.?]
Language: eng
Number of pages: 173
Subjects: Ecology -- Ontario; Environmental policy -- Ontario; Pollution -- Ontario
Other titles: Man and the quality of his environment